Jambs m



m 'J. M. SEYMOUR.

} .FAN.

N0.333,349. Patented Dec. 29, 1885'.

fizz wife):

N. PETERS. PlIolo-Lilhngr-xphnr. Washington. u. c,

vented certain new and useful Improvements sible for supporting thefan-shaft; and the con- A UNITED latl JAMES M. SEYMOUR, OF NEWARK, NE\VJERSEY.

SPECIFICATION forming part of Letters Patent No. 333,349, dated December29, 1885.

Appliialion filed August 252, 1885.

To all whom it may concern:

Be it known that I, JAMES M. SEYMOUR, a citizen of the United States,residing in Newark, Essex county, New Jersey, have inin Standard Fans,fully described and represented in the following specification and theaccompanying drawings, forming a part of the same. 1 i I The object ofthis inventio isto furnish a! support for a rotary fan 'in s tuationswhere the driving-power is located above the floor, and wherea'suspended hanger is not admisstruction therefore consists in avertical column or standard having a shaft projecting above itsupper'end, and having both the pulley and fan-hub applied thereto andprovided with means for clutching them together.-

It also consists in a construction for the clutching mechanism wherebythe fan is lifted by moving the shaft vertically, and the weight ofthefan,when lowered, suffices to press frictional clutching surfaces withsufficient force to rotate the fan. In such construction it isimmaterial whether the shaft be constructed to revolve or not, as thepulley and fan-hub may be provided with adjacent frictional surfaces,and arranged to turn freely upon the upper end of the shaft projectedabove the top of the column.

In the drawings I have shown two forms for my construction Figure 1representingastandard fan having the pulley in contact with the top ofthe column, and the column, the pulley, and the fan-hub being shown insection. Fig. 2 represents a standard fan with the pulley applied to theshaft above the fan-hub, the top of the column, the pulley, the fan-hub,and its frictional driving-plate being shown in section, and the fan-hubraised from the collar 1', which projects from the top of the column.Fig. 3 represents the head of the column, shown in Fig. 1,with only theshanks of the fan-blades attached to the fan-hub;and Fig. 4 shows thehead of the column in Fig. 2, with the fan-hub resting upon the collarr, and only the shanks of the fan-blades.

In Figs. 1 and 3, a is the column, shown of hollow tapering form.

b is a shaft fitted to the center of the same.

Serial No. 175,2).29. (No model.) i

c is the fan-pulley applied beneath the fanhub and resting upon the topof the column.

d is the fan-hub shown fitted to the extreme upper end of the shaft,whose top supports its weight, so that the fan may be raised and loweredby a vertical movement of the shaft.

e is a driving-pulley mounted upon a line shaft, f, and connected withthe pulley c by belt 9, so as to rotate the latter continuously when thephlleye revolves.

h are the fan-blades secured in the pulleyhub by shanks 13, and m is afriction-disk formed upon the lower end of the fan hub, to rest upon theupper surface of the pulley c, which latter is preferably faced withleather a.

j is a lever pivoted transversely in the column across the bottom of theshaft b, as at k, and provided with a step, Z, for the shaft. A screw,0, provided with a hand-wheel, is fitted to an ear, 1), upon the column,and adjusted to raise and lower the lever j to elevate the shaft b. Theshaft is shown thus elevated i'n Fig. 1, thus raising the fan-hub anddisk m from contact with the revolving pulley 0, so that the pulley hasno effect in rotating the fan; but in Fig. 3 the shaft is represented aslowered, so that the weight of the entire fan presses the disk at uponthe pulley and effects the rotation of the fan by frictional contacttherewith. In lowering the shaft the screw 0 may be adjusted to pressthe fan-hub upon the pulley with more or less force, and to thusregulate the rotary speed of the fan within certain limits.

In this construction for my invention it is obviously immaterial whetherthe shaft be attached to the pulley c or the hub d, or to neither, asthe operation of the friction-clutch is the same whether the fan-hub befastened to r v the shaft or not.

To secure the required pressure to transmit the maximum speed to the fanby frictional contact with the pulley, the hub all may be weighted byincreasing its bulk to any desired extent, or the shaft may be securedtherein, to increase its weight.

In the constructionj ust described the clutch is actuated by loweringthe shaft; but in Figs. 2 and 4. a construction is shown in which africl te, q, is applied to the shaft below the fan-hub, so as to bepressed upward to clutch it to the latter, and the disk m is constructedto project over the margin of the plate q, so as to rest upon a collar,1', afiixed to the top of the column when the shaft is lowered. Thepulley c is affixed to the top of the shaft above the fan-hub, and theplate q is also secured to the shaft, so as to revolve continuously whenthe pulley is driven, as by belt 9 and pulley 6'.

- When the lowering of the shaft permits the disk to rest upon thecollar, the plate q obviously ceases to drive it, and the motion of thefan is entirely stopped. In this construction the fan-hub is fittedloosely to the shaft between the pulley and plate q, so as to slidefreely up and down, being supported when at rest by the collar r, and bythe plate g when in motion.

- Fig. 4shows the same parts when the fan is at rest,with the disk mresting upon the collar. The adjusting-screw 0 and lever j are of thesame. construction in Fig. 2 as in Fig. 4, although partly concealed inthe former figure.

It is obvious that teeth might be substituted for the frictionalsurfaces shown in the drawings, and that the longitudinal movement ofthe hub d or plate q would suffice to clutch and unclutch such teeth,aswell as to separate frictional surfaces from contact with one another.

I do not claim herein the combination in a standard fan of a clutchsecured to the shaft above the pulley-hub, and means for lifting the hubto engage it with the clutch-plate, as

- I have made such claim in my patent application N 0. 171,941, whichshows the drivingpower applied to the lower end of the shaft.

. My present invention differs from the same in having the pulleyarranged at the top of the shaft to receive the driving-power, by whichconstruction I am enabled to mount the fan in apartments where thedriving-power is above the floor and where the fan cannot beconveniently suspended from the ceiling.

From the above description it will be seen thatmy invention does notconsist in a special means for operating the fan by means of a rotatingpulley applied to the top of the column therewith; but in thecombination of a rotating pulley and a fan-hub with the end of the shaftprojecting above the top of the 001- 'a supporting-column and a verticalshaft sustained by the column and projecting above-the top of the same,of a fan-hub and a rotating pulley applied to the shaft above the top of6 the column, and clutching mechanism for connecting the fan and pulleyto rotate together, substantially as herein set forth.

2. In a standard fan, the combination, with a supporting-column and avertical shaft sustained by the column and projecting above the top ofthe same, of a fan-hub and a rotating pulley applied to the shaftabovethe top of the column, clutching mechanism actuated by an endmovement of the shaft for con- 7 necting the fan and pulley, and. meansfor shifting the shaft endwise to operate the clutch, substantially asshown and described.

3. In a standard fan, the combination, with the column a, of the shaftb, mounted thereon and projected from its upper end, the rotating pulleyc,applied to the shaft and resting upon the top of the column, thefan-hub d,sustained by the shaft above the pulley, and a screw arrangedand operated to raise and lower the 8 shaft for clutching the fan andpulley together, substantially as herein set forth.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

JAMES M. SEYMOUR. Witnesses:

THOS. S. CRANE,

L. LEE.-

